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Round Hole Patterns

Round Holes ranging from under .020" to over 6" account for 80% of the production of the perforating industry.  Round holes can be produced with greater efficiency and less expense than any other hole shape.  The dies and punches to make round holes are the most cost efficient to build and maintain.  Round holes are the most versatile in their application, providing a wide range of open areas and attractive appearance.

Tooling Charts



60° Staggered Centers



Straight Centers



45° Staggered Centers


This pattern is the most popular hole arrangement due to its inherent strength, wide range of open areas and its attractive appearance.

 


This pattern is also very popular and available in a variety of sizes and open areas.  Please note, however, that straight center patterns are not as strong as staggered patterns and tend to stretch the material to a greater degree.


This pattern offers the same advantages as the 60° staggered pattern but with a different aesthetic appearance.

 

  

 

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